Asymmetry, choanocytes, filter feeding, osculum, and spicules are all terms associated with which
phylum?
a. Nematoda
b. Ctenophora
c. Nemertea
d. Porifera
e. Cnidaria
D
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Which of these is NOT associated with
sclerenchyma?
a. lignin b. photosynthesis c. support d. sclereids e. fibers
The secondary oocyte does not complete the second meiotic division until
A. fertilization. B. ovulation. C. birth. D. puberty.
What is the purpose of an enzyme's 3?–5? exonuclease activity?
a. to unwind the double helix b. to excise incorrectly added bases c. to polymerize DNA d. to repair lesions e. to remove RNA primers
A community ecologist might study:
A) all the members of a single species that live together in a single geographic area. B) the behavior of a species in its natural environment. C) the rates of increase or decrease in the population size of individual species in different environments. D) the interactions among species living in a single area.